R1D48 - EARTH LEAKAGE RELAY R1D 48VAC

Why Choose the R1D48?

The Lovato R1D48 Earth leakage relay delivers dependable Type A residual monitoring for panels and switchboards. Designed for flush mounting and operation with an external toroidal transformer, this single-threshold model suits compact control assemblies. With a 24–48VAC/DC supply range and compliance to IEC/EN 60947-2, the R1D48 helps detect leakage conditions early to support equipment protection and operational continuity.

Part of the R1D family, this relay combines robust build with practical installation details. It offers a mechanical life of 50,000,000 cycles and a maximum terminal tightening torque of 0.5 Nm. Rated for operation from -10 to +60 °C, the Lovato unit supports reliable service in typical control environments, while its external CT arrangement provides flexible sensing placement within the installation.

Key Benefits

• Type A residual operation characteristic for precise earth leakage monitoring.
• Flush mounting enables neat, space-efficient panel integration.
• External toroidal transformer compatibility for flexible sensor placement.
• Wide 24–48VAC/DC supply suits common control and auxiliary voltages.
• Single operating threshold simplifies configuration and coordination.
• IEC/EN 60947-2 conformity supports standards-based installations.
• Mechanical life rated to 50,000,000 cycles for durability.
• Operates from -10 to +60 °C for varied site conditions.

Technical Specification

• Product type designation: R1D
• Terminal tightening torque (max): 0.5 Nm
• Mechanical life: 50000000 cycles
• Operating temperature: -10 to +60 °C
• Storage temperature: -20 to +80 °C
• Weight: 280 g

What’s Included

• Lovato R1D48 Earth leakage relay (flush-mount)
• Quick start and installation guide
• Product datasheet
• Safety and conformity information

Applications

• Industrial control panels and switchboards
• Commercial distribution boards requiring earth leakage monitoring
• OEM equipment needing Type A residual protection
• Motor control centres using an external toroidal CT
• Retrofit upgrades where flush mounting is preferred

Safety note: Install and commission only by qualified personnel. Ensure correct external CT selection, tighten terminals to the specified torque, and operate within the stated voltage and temperature ranges. Isolate power before work.